AppendAllLinesAsync() [2/2]

static Task System.IO.File.AppendAllLinesAsync ( string path, IEnumerable< string > contents, Encoding encoding, CancellationToken cancellationToken = default(CancellationToken) )

inlinestatic

Definition at line 965 of file File.cs.

    {
        if (path == null)
        {
            throw new ArgumentNullException("path");
        }
        if (contents == null)
        {
            throw new ArgumentNullException("contents");
        }
        if (encoding == null)
        {
            throw new ArgumentNullException("encoding");
        }
        if (path.Length == 0)
        {
            throw new ArgumentException(SR.Argument_EmptyPath, "path");
        }
        if (!cancellationToken.IsCancellationRequested)
        {
            return InternalWriteAllLinesAsync(AsyncStreamWriter(path, encoding, append: true), contents, cancellationToken);
        }
        return Task.FromCanceled(cancellationToken);
    }

References System.SR.Argument_EmptyPath, System.IO.File.AsyncStreamWriter(), System.cancellationToken, System.Threading.Tasks.Task< TResult >.FromCanceled(), and System.IO.File.InternalWriteAllLinesAsync().